C++ Deterministic Projects

cnl

4 619 4.1 C++

A Compositional Numeric Library for C++
fpm

3 593 2.1 C++

C++ header-only fixed-point math library (by MikeLankamp)

Project mention: Try This Brand New Analog Computer | news.ycombinator.com | 2023-12-30

> more like a floating point ... or more like a fixed-point ... ?
It really depends on what kind of analog hardware you use. Not exactly like either. You would different causes for error: Thermal, inherent indeterminism of interactions, decay/drift of value over time, boundary breaches with values near extrema, etc.
> IMO it is surprising fixed-point values don’t come up more often
The C++ standard committee has seen a paper on adding those to the language, as a library feature: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p00...
There's a kind-of-popular fixed-point-math library for the language:
https://github.com/MikeLankamp/fpm
and I'm sure they have received some attention in other languages.

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).